Inseam sewing-machine



A. R. MORRILL.

INSEAM SEWING MACHINE.

APPLICATION FILED' FEB- 26. 1918.

v '1, Patented. Aug- 24,

-j it ALFREDR- SWAMite QTi-M A the following to bee invention; siwhg :aswill {1 enable others skilled in' the art to whi' chf itfl description fthe apperte'in's t0 make The ihvent i'oh*relatesytofiriseam sewingfmaChi'ngs, and its Object is toii-inpi'ove the k ga e, 01" thecombined"; 'ui de "(if such machines, he wqrk snugly against-L V thechannel guide and the q pen snugly i ntg ix' 'ith'out st ikihg I theshoulder of the undersprin Fi 3 is w objectionableblows upoi the work.

'Tojthi's end the hackgajge 1s broughtYup 1 to and graduallypressedegai'nsfl thewo'nk f pressing "preparatory entrance cfthe heedleinto theWO'rk, and isp sitiv'ely adiranced to finally and hold itdurihg1the;

thereafter compress the wofick retti'ction Of the ne gradually forcedefg'iw jar'd against "the wofkgf V The fuHfOrCeToi? the spring pressureis thus p gradually applied, after which theftvofk is further cbmpresedfl degree by the p o'sitiv e advenee -fefthe gage. thefliiirention'outlined; above, as Well es furtherg feeturesrefefred to I undei stO dfiem an inspection bf the aeco panying d awing an The features ot? in teeiaimsgwiu the "follewing detailed. desdripti'ori the: meehz'ilismillustfeted V 1;; thedrztiivixigs' Fi ur'ef'l is a sfideleye n SIiI Qv .h

es 'e lf to illu of the'present inyer tlonftheretej FigQQQ ne mewhet'lreer nd V ew loekmg. t'owa rd V a detail side eleye the leftin' g- 2; in

ing :theliii kjs cennectingithe beck gage'f t g d lce ieir. w t tsQperwe i m In he w n e i en i n is how mbe ied' n en' fi em.$e n ma hie-he the g neral construction and n 'd *O f R. "Monni mi e res 'ding atandjuse the same;

insole,

d-1e and theftightfiing of the stitch. To insure a gradualapplice5 j'tionef the yielding or Work-the gage is'pi e spring pressure to the orsqueezed th defiiiite m h f s w e ehne stre'te thev application;

, sidet the sli dezi f ra'bly brpiig'ht 11p {to a fixed preliminaryposition iand "is then position chairinel gl'i idefhy e 2s*sh0.* SOadjusted I movementof' he abk g i 19113;;end 1,108,5 0,". August 525,1914. Th

0' ivl iahe'i n th me ting shewn is in-S Welt guide; a The; back entsabove refei re'd ftp;

PH. qnj of 'the inachihe shown' 'eiid scribed Patents Nest1,076,2015f0d0bi" "2,1

ulde 'sg' a back est 10, -ahde baek ga gle; V v

age qr'welt gilidei'ssecured on the end "of fit eai rier 'levei' 14which 7 1 slide 16' corresponding t0 the back gage or welt guide slideofthe pet-j {This slide-is he-slid s pests which 'e'ngztgesh" efidc f theslide, The slide is lo 'ckedeggtinst iii'gi etratcted by locking ro11f30which then graduelfi fiercled 'feijwdrd toward the operated" h{:theeem"1eirei? 32 its fi uy leihefitel inechapis'm; Ward" movement 'offtide lidefisfarrest I t This "meehanismf vertical am qf the bell crahk leyei is 6gp To secure-themes results, 'thesto m that the 'for-we' fdgthus avoiding the hammering-action of the straightenithe toggle formedby. the links: 7

insole. and

if "set for the back gage which might otherwise occur.- 'During' thisforward movement of the back gage "into its'preliminary position, thebell crank lever 38 is insuch positionthat the slot 40 i'sparallel tothe slide 16, and the advance movement ofthe slide has-noeifect fpivotal connection between the;

upon the-- links 34 and 36. After y the backgagehas been brought intopreliminary position, the bell, crank lever is 'rocked'L-toQgradually,3Land 36. The back gage will thusbe gradually forced againsttheshoe,and; will c, apply a yielding pressurewhichis supported. by thespring24, The "movement-of thebell crank lever tendingto straighten, thetoggle continues after the needle hasjen tered the work, and after theslide 1,6 has" been locked against backward novementg After the. slide,is ,locked, theffi ntinued, straightening of thetoggle will .force the.gagegforward positively a definite amount thereby. ,giving the zwork apredetermined positive squeeze or;,compression' which ,is

maintained or continued-during theiretrac-, tion of the needle, \andwhich presses and holds the upper snugly in theshoulder-of the the shoefirmly against the'channelguide. ,In' sewing certain classes of workthe,

thickness of the materials between thechan w; nel guide and theback gagemay be so much greater. about the toe than along the sides of: theshoethattheback gage will, strike the 1 .work in sewingabout the toebefore the stop,

will be nearer the fulcrum vofthe .bellcrank I place, thereby reducingthe -squeeze I o bet ter suit the. conditions-along this partzof the jtion and. arrangement of parts shownand tion; and arrangementis notessential to the broader; features of theinvention, but may be varied ormodifiedas f found desirable or V best'suited to the construction andarra'n ement of the parts in the machine to TWlIICh the invention is tobe applied.

one formo f m-echanis m in which it may be 1. An inseam sewingmachine,having,

combination, a needle, achannel-guide, a

. .vancing the gage under spring for, gradually i against the workcombination, a needle, a channel proper operation along the \sides'of'the cshoe, will arrest the vforward movement of the back gage slide. Insuch a case the. pivot pin betweenthetoggle links,

a y, the gagetoward the channel .Havmg. explained the nature and objectY of the invention, and specifically described V 3 mechanismlforretracting the-slide, aspring c g s aga nst; thexw' fin Spring 9 work bythe needle and for positively adthe'needle. 1

combination," a needle,

a channel guide, a back gage,

.mechanism for advancing" the gage to'a predetermined position,mechaivin it a final' )osit'ive movement to-compress the work betweenthe gage ,andmhannel guide. 1

3. -An inseamsewing machine,chaving, in;

combination, a I needle, f a channel guide, a

back gagemechanisms said-advance,

forcing the 1 gage .forward gage. during the retraction of Ail inseamsewing machine, l1aving, in"

force--it .gladually against the work and for for; advancing thepressure, astop to arrest and supplemental imechanism' afterit isarrested-by the; Y

4:; An -inseam sew-ingjmachine, having, in 1 combination, aneedlep achannel guide,"- a bacjkv gage, *Inechamsm' for advancmg": the,

gage under spring" pressure, a stopfor ar-' resting said advance,

a ,5iupple a mechanism for --gradually and positively.

forcing the: gage forward-against the work; afterit is arrested by thestop 5. An inseam sewing-machine,fhaving, in:v

guide, back gage, mechanism ion uniformly retracting the gage,;aspringifor advancing the.

gage, a stop for limiting saidadvance, and.

mechanism for continuing theiadvance ofiz for-imparting a final;positive moyement 1 inseam n ch ne h v g,.iir

I the gage'to force it againstthe 'worljIQand retracting-the -sli de,}aspring for advancing the vslide, a stop for limiting the forward jmovement of the slide,-mecha nism forlock ,11'0 I, a e V C I a f ingtheslide, and means actinglagainst the Whlle it is preferred to juse theconstruc-J,

resistance --offered;by"the slide for forcingthe;

a channel 1 guide, a

.'1 1 5 e e l d e ha i r 1 retractingthe slide,- a spring' foi'advancing; 5

movement 'Qf theslide, I ing the .slidc,gand means actinglagainst the:resistance ofl'ered by the slide for forcing;

and after. theslide is lockedif the slide, a stop iforlimiting-the.;forwardlg '7 mechanism for lock- 5 guide before,

8. Ant inseam sewing, machine, havingfll in Q combination, a needle," ach'annelz guide,

motion is transmitted lto 1 theback gage,

en. adv n n he slide, aj'. t9P.,-f det' rr back .ga ge, aback gageslideconnections be. i

tween the slide and.backgagethroiighwhich 5 mining the forward jcsitionof-the slide, hack gage,a baclz gage slide, mechanism fer V mechanismfor locking the slide and mech-Z retract ng andadvancing the slide, aslide anism for actuatingthe connections between lock, a toggleconnecting the slide and gage, 10

the slide and gage to force the gage graduand mechanism forg'actuatingthe toggle ally toward the channel guide. after the slide has beenadvanced. 9. An inseam sewing machine, having, in

combination, a needle, a channel guide, a BQMO RRILL i V

